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Position: Home > Articles > Segregation Ratio of Growth Habit and Heritabilities of Yield Traits in Soybean Crosses with Parents of Different Growth Habit Soybean Science 1986 (2) 139-146

大豆不同结荚习性品种间杂交后代结荚习性的分离规律及产量性状的遗传力分析

作  者:
陈怡;翁秀英
单  位:
黑龙江省农业科学院大豆研究所
摘  要:
本文对三种结荚习性的三个极早熟和中早熟品种的杂交后代进行了研究。不同结荚习性品种杂交的F_1代均表现为中间型或亚有限性,其F_2代的分离比率,有限×无限分离出1无限:2亚有限:1有限性。无限×亚有限性分离出3亚有限.1限性;亚有限×有限性分离出1无限:11亚有限:4有限性;表明两对基因影响大豆的结荚习性,而dt1对Dt2—dt2有上位作用。不同结荚习性品种杂交后代的广义遗传力hB~2(%)估值较高,其顺序为株高>节数>单株粒重>单株粒数>单株荚数>百粒重>分枝数。
译  名:
Segregation Ratio of Growth Habit and Heritabilities of Yield Traits in Soybean Crosses with Parents of Different Growth Habit
作  者:
Chen Yi Wong Xiuying(Soybean Research Institute of Heilongjiang Academy of Agricultural Sciences
摘  要:
The performance of F1 of crosses between parents with different growth habits showed intermediate type or semi-determinate type. In F2 generation, the crosses between determinate and indeterminate gave a ratio of 1 indeterminate: 2 semi-determinate: 1 determinate; Indeterminate x semi-determinate gave a ratio of 3 semi-determinate: 1 inde terminate; Semi-determinate x determinate gave a ratio of 1 indeterminate; : 11 semi-determinate : 4 determinate. The results indicated that the growth habit of soybean is a qualitative character controled by two pair of genes, and dt1 is epistatic to Dt1-dt2.The broad sense heritability values were highly significant in crosses between different growth habits, especially in crosses which show high heterosis in F1 generation. The sequence of the heritability values is plant height>nods per stem>seed weight per plant>number of seeds per plant>100-seed weight>branches per plant.

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